Viessmann VITOTRONIC 200 Installation And Service Instructions Manual page 79

Heating circuit control unit
Temperature profile 2: (ZV parquet and flooring tech-
nology) code "F1:2"
50
40
30
20
10
1 5 10
Fig.44
Temperature profile 3: Code "F1:3"
50
40
30
20
10
1 5 10
Fig.45
Temperature profile 4: Code "F1:4"
50
40
30
20
10
1 5 10
Fig.46
Temperature profile 5: Code "F1:5"
50
40
30
20
10
1 5 10
Fig.47
Temperature profile 6: Code "F1:6"
60
50
40
30
20
10
1 5 10
Fig.48
(cont.)
15 20 25 30
Days
15 20 25 30
Days
15 20 25 30
Days
15 20 25 30
Days
15 20 25 30
Days
Temperature profile 7: Code "F1:15"
50
40
30
20
10
1 5 10
Fig.49
System dynamics
You can influence the control characteristics of the
mixers via coding address "C4".
Frost protection
The flow temperature is maintained in accordance with
the heating curve for the reduced set room tempera-
ture, but at min. 10 C.
°
A variable frost limit can be set in accordance with
coding address "A3" in the "Heating circuit..." group.
Flow temperature control
110
A
74
+20
Outside temperature in °C
Fig.50
Electronic maximum boiler water temperature limit
A
Slope = 1.8 for heating circuit without mixer
B
Slope = 1.2 for heating circuit with mixer
C
Boiler water temperature (at differential tempera-
D
ture = 8 K)
Lower boiler water temperature, defaulted by the
E
boiler coding card
Differential temperature:
The differential temperature can be adjusted via cod-
ing address "9F" in the "General" group.
Function description
15 20 25 30
Days
B
D
C
8 K
E
-20
79